don't have a head, but have before. I have my pre and power racked in the same rack. one word. WHEEELS!!!!!
makes transporting so much easier. Mine is just a 6 space unit, but with a handle and wheels, its much easier to cart around. Lifting into my car is the only hard part, but its doable.
Love having stereo, we mic both speakers where I play, but even if its only one, at least you will be hearing your efx and all in their stereo glory, plus you still have the ability to blend different tubes L/R
One more module, and also choice of power amp. For a more portable rig, you could pick up a smaller lower watt power amp instead of a beast.